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| Src | Date (GMT) | Titre | Description | Tags | Stories | Notes |
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2024-06-12 14:00:00 | Aperçu sur les cyber-menaces ciblant les utilisateurs et les entreprises au Brésil Insights on Cyber Threats Targeting Users and Enterprises in Brazil (lien direct) |
Written by: Kristen Dennesen, Luke McNamara, Dmitrij Lenz, Adam Weidemann, Aline Bueno
Individuals and organizations in Brazil face a unique cyber threat landscape because it is a complex interplay of global and local threats, posing significant risks to individuals, organizations, and critical sectors of Brazilian society. Many of the cyber espionage threat actors that are prolific in campaigns across the globe are also active in carrying out attempted intrusions into critical sectors of Brazilian society. Brazil also faces threats posed by the worldwide increase in multifaceted extortion, as ransomware and data theft continue to rise. At the same time, the threat landscape in Brazil is shaped by a domestic cybercriminal market, where threat actors coordinate to carry out account takeovers, conduct carding and fraud, deploy banking malware and facilitate other cyber threats targeting Brazilians. The rise of the Global South, with Brazil at the forefront, marks a significant shift in the geopolitical landscape; one that extends into the cyber realm. As Brazil\'s influence grows, so does its digital footprint, making it an increasingly attractive target for cyber threats originating from both global and domestic actors. This blog post brings together Google\'s collective understanding of the Brazilian threat landscape, combining insights from Google\'s Threat Analysis Group (TAG) and Mandiant\'s frontline intelligence. As Brazil\'s economic and geopolitical role in global affairs continues to rise, threat actors from an array of motivations will further seek opportunities to exploit the digital infrastructure that Brazilians rely upon across all aspects of society. By sharing our global perspective, we hope to enable greater resiliency in mitigating these threats. Google uses the results of our research to improve the safety and security of our products, making them secure by default. Chrome OS has built-in and proactive security to protect from ransomware, and there have been no reported ransomware attacks ever on any business, education, or consumer Chrome OS device. Google security teams continuously monitor for new threat activity, and all identified websites and domains are added to Safe Browsing to protect users from further exploitation. We deploy and constantly update Android detections to protect users\' devices and prevent malicious actors from publishing malware to the Google Play Store. We send targeted Gmail and Workspace users government-backed attacker alerts, notifying them of the activity and encouraging potential targets to enable Enhanced Safe Browsing for Chrome and ensure that all devices are updated. Cyber Espionage Operations Targeting Brazil Brazil\'s status as a globally influential power and the largest economy in South America have drawn attention from c |
Ransomware Spam Malware Tool Vulnerability Threat Mobile Medical Cloud Technical | APT 28 | ★★ |
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2024-06-03 14:00:00 | Ransomwares rebonds: la menace d'extorsion augmente en 2023, les attaquants s'appuient sur les outils accessibles au public et légitimes Ransomware Rebounds: Extortion Threat Surges in 2023, Attackers Rely on Publicly Available and Legitimate Tools (lien direct) |
Written by: Bavi Sadayappan, Zach Riddle, Jordan Nuce, Joshua Shilko, Jeremy Kennelly
A version of this blog post was published to the Mandiant Advantage portal on April 18, 2024. Executive Summary In 2023, Mandiant observed an increase in ransomware activity as compared to 2022, based on a significant rise in posts on data leak sites and a moderate increase in Mandiant-led ransomware investigations. Mandiant observed an increase in the proportion of new ransomware variants compared to new families, with around one third of new families observed in 2023 being variants of previously identified ransomware families. Actors engaged in the post-compromise deployment of ransomware continue to predominately rely on commercially available and legitimate tools to facilitate their intrusion operations. Notably, we continue to observe a decline in the use of Cobalt Strike BEACON, and a corresponding increase in the use of legitimate remote access tools. In almost one third of incidents, ransomware was deployed within 48 hours of initial attacker access. Seventy-six percent (76%) of ransomware deployments took place outside of work hours, with the majority occurring in the early morning. Mandiant\'s recommendations to assist in addressing the threat posed by ransomware are captured in our Ransomware Protection and Containment Strategies: Practical Guidance for Hardening and Protecting Infrastructure, Identities and Endpoints white paper. Introduction Threat actors have remained driven to conduct ransomware operations due to their profitability, particularly in comparison to other types of cyber crime. Mandiant observed an increase in ransomware activity in 2023 compared to 2022, including a 75% increase in posts on data leak sites (DLS), and an over 20% increase in Mandiant-led investigations involving ransomware from 2022 to 2023 (Figure 1). These observations are consistent with other reporting, which shows a record-breaking more than $1 billion USD paid to ransomware attackers in 2023. This illustrates that the slight dip in extortion activity observed in 2022 was an anomaly, potentially due to factors such as the invasion of Ukraine and the leaked CONTI chats. The current resurgence in extortion activity is likely driven by various factors, including the resettling of the cyber criminal ecosystem following a tumultuous year in 2022, new entrants, and new partnerships and ransomware service offerings by actors previously associated with prolific groups that had been disrupted. This blog post provides an overview of the ransomware landscape and common tactics, techniques, and procedures (TTPs) directly observed by Mandiant in 2023 ransomware incidents. Our analysis of TTPs relies primarily on data from Mandiant incident response engagements and therefore represe |
Ransomware Data Breach Spam Malware Tool Vulnerability Threat Legislation Prediction Medical Cloud Commercial | ★★★ | |
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2017-06-02 08:00:00 | Les acteurs de la menace tirent parti de l'exploit éternel pour livrer des charges utiles non de la wannacry Threat actors leverage EternalBlue exploit to deliver non-WannaCry payloads (lien direct) |
L'exploit «eternalblue» ( MS017-010 ) a d'abord été utilisépar Wannacry Ransomware et Adylkuzz Cryptocurrency Miner.Maintenant, plus d'acteurs de menaces tirent parti de la vulnérabilité à MicrosoftProtocole de bloc de messages du serveur (SMB) & # 8211;Cette fois pour distribuer Backdoor.Nitol et Trojan Gh0st Rat.
Fireeye Dynamic Threat Intelligence (DTI) a historiquement observé des charges utiles similaires livrées via l'exploitation de la vulnérabilité CVE-2014-6332 ainsi que dans certaines campagnes de spam par e-mail en utilisant Commandes de versions .Plus précisément, Backdoor.Nitol a également été lié à des campagnes impliquant une exécution de code distante
The “EternalBlue” exploit (MS017-010) was initially used by WannaCry ransomware and Adylkuzz cryptocurrency miner. Now more threat actors are leveraging the vulnerability in Microsoft Server Message Block (SMB) protocol – this time to distribute Backdoor.Nitol and Trojan Gh0st RAT. FireEye Dynamic Threat Intelligence (DTI) has historically observed similar payloads delivered via exploitation of CVE-2014-6332 vulnerability as well as in some email spam campaigns using powershell commands. Specifically, Backdoor.Nitol has also been linked to campaigns involving a remote code execution |
Ransomware Spam Vulnerability Threat | Wannacry | ★★★★ |
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2015-04-01 15:17:27 | Microsoft Word Intruder (MWI): un nouveau kit d'exploitation de documents Word Microsoft Word Intruder (MWI): A New Word Document Exploit Kit (lien direct) |
Les outils utilisés pour créer des documents malveillants qui exploitent les vulnérabilités dans Microsoft Word sont désormais annoncés dans des forums underground et un nouvel outil a émergé qui offre la possibilité de suivre l'efficacité des campagnes.Le constructeur, Microsoft Word Intruder (MWI), est annoncé comme un outil «APT» à utiliser dans les attaques ciblées.Il s'accompagne d'un ensemble de statistiques appelé «Mwistat» qui permet aux opérateurs de suivre diverses campagnes.
Selon l'auteur, l'utilisation de MWI en collaboration avec le spam est interdite, et ceux qui ignorent ce risque pour que leur permis soit révoquée.Dans
The tools used to create malicious documents that exploit vulnerabilities in Microsoft Word are now being advertised in underground forums and one new tool has emerged that provides the ability to track the effectiveness of campaigns. The builder, Microsoft Word Intruder (MWI), is advertised as an “APT” tool to be used in targeted attacks. It is accompanied by a statistics package known as “MWISTAT” that allows operators to track various campaigns. According to the author, the use of MWI in conjunction with spam is forbidden, and those who ignore this risk having their license revoked. In |
Spam Tool Vulnerability Technical | ★★★★ |
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